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      1 /*
      2  * Copyright (C) 2006, 2007 Apple Inc.
      3  * Copyright (C) 2007 Alp Toker <alp (at) atoker.com>
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <gtk/gtk.h>
     28 #include <webkit/webkit.h>
     29 
     30 static GtkWidget* main_window;
     31 static GtkWidget* uri_entry;
     32 static GtkStatusbar* main_statusbar;
     33 static WebKitWebView* web_view;
     34 static gchar* main_title;
     35 static gdouble load_progress;
     36 static guint status_context_id;
     37 
     38 static void
     39 activate_uri_entry_cb (GtkWidget* entry, gpointer data)
     40 {
     41     const gchar* uri = gtk_entry_get_text (GTK_ENTRY (entry));
     42     g_assert (uri);
     43     webkit_web_view_load_uri (web_view, uri);
     44 }
     45 
     46 static void
     47 update_title (GtkWindow* window)
     48 {
     49     GString* string = g_string_new (main_title);
     50     g_string_append (string, " - WebKit Launcher");
     51     if (load_progress < 100)
     52         g_string_append_printf (string, " (%f%%)", load_progress);
     53     gchar* title = g_string_free (string, FALSE);
     54     gtk_window_set_title (window, title);
     55     g_free (title);
     56 }
     57 
     58 static void
     59 link_hover_cb (WebKitWebView* page, const gchar* title, const gchar* link, gpointer data)
     60 {
     61     /* underflow is allowed */
     62     gtk_statusbar_pop (main_statusbar, status_context_id);
     63     if (link)
     64         gtk_statusbar_push (main_statusbar, status_context_id, link);
     65 }
     66 
     67 static void
     68 notify_title_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
     69 {
     70     if (main_title)
     71         g_free (main_title);
     72     main_title = g_strdup (webkit_web_view_get_title(web_view));
     73     update_title (GTK_WINDOW (main_window));
     74 }
     75 
     76 static void
     77 notify_load_status_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
     78 {
     79     if (webkit_web_view_get_load_status (web_view) == WEBKIT_LOAD_COMMITTED) {
     80         WebKitWebFrame* frame = webkit_web_view_get_main_frame (web_view);
     81         const gchar* uri = webkit_web_frame_get_uri (frame);
     82         if (uri)
     83             gtk_entry_set_text (GTK_ENTRY (uri_entry), uri);
     84     }
     85 }
     86 
     87 static void
     88 notify_progress_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
     89 {
     90     load_progress = webkit_web_view_get_progress (web_view) * 100;
     91     update_title (GTK_WINDOW (main_window));
     92 }
     93 
     94 static void
     95 destroy_cb (GtkWidget* widget, gpointer data)
     96 {
     97     gtk_main_quit ();
     98 }
     99 
    100 static void
    101 go_back_cb (GtkWidget* widget, gpointer data)
    102 {
    103     webkit_web_view_go_back (web_view);
    104 }
    105 
    106 static void
    107 go_forward_cb (GtkWidget* widget, gpointer data)
    108 {
    109     webkit_web_view_go_forward (web_view);
    110 }
    111 
    112 static GtkWidget*
    113 create_browser ()
    114 {
    115     GtkWidget* scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    116     gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    117 
    118     web_view = WEBKIT_WEB_VIEW (webkit_web_view_new ());
    119     gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (web_view));
    120 
    121     g_signal_connect (web_view, "notify::title", G_CALLBACK (notify_title_cb), web_view);
    122     g_signal_connect (web_view, "notify::load-status", G_CALLBACK (notify_load_status_cb), web_view);
    123     g_signal_connect (web_view, "notify::progress", G_CALLBACK (notify_progress_cb), web_view);
    124     g_signal_connect (web_view, "hovering-over-link", G_CALLBACK (link_hover_cb), web_view);
    125 
    126     return scrolled_window;
    127 }
    128 
    129 static GtkWidget*
    130 create_statusbar ()
    131 {
    132     main_statusbar = GTK_STATUSBAR (gtk_statusbar_new ());
    133     status_context_id = gtk_statusbar_get_context_id (main_statusbar, "Link Hover");
    134 
    135     return (GtkWidget*)main_statusbar;
    136 }
    137 
    138 static GtkWidget*
    139 create_toolbar ()
    140 {
    141     GtkWidget* toolbar = gtk_toolbar_new ();
    142 
    143 #if GTK_CHECK_VERSION(2,15,0)
    144     gtk_orientable_set_orientation (GTK_ORIENTABLE (toolbar), GTK_ORIENTATION_HORIZONTAL);
    145 #else
    146     gtk_toolbar_set_orientation (GTK_TOOLBAR (toolbar), GTK_ORIENTATION_HORIZONTAL);
    147 #endif
    148     gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), GTK_TOOLBAR_BOTH_HORIZ);
    149 
    150     GtkToolItem* item;
    151 
    152     /* the back button */
    153     item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_BACK);
    154     g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_back_cb), NULL);
    155     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
    156 
    157     /* The forward button */
    158     item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_FORWARD);
    159     g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_forward_cb), NULL);
    160     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
    161 
    162     /* The URL entry */
    163     item = gtk_tool_item_new ();
    164     gtk_tool_item_set_expand (item, TRUE);
    165     uri_entry = gtk_entry_new ();
    166     gtk_container_add (GTK_CONTAINER (item), uri_entry);
    167     g_signal_connect (G_OBJECT (uri_entry), "activate", G_CALLBACK (activate_uri_entry_cb), NULL);
    168     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
    169 
    170     /* The go button */
    171     item = gtk_tool_button_new_from_stock (GTK_STOCK_OK);
    172     g_signal_connect_swapped (G_OBJECT (item), "clicked", G_CALLBACK (activate_uri_entry_cb), (gpointer)uri_entry);
    173     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
    174 
    175     return toolbar;
    176 }
    177 
    178 static GtkWidget*
    179 create_window ()
    180 {
    181     GtkWidget* window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    182     gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
    183     gtk_widget_set_name (window, "GtkLauncher");
    184     g_signal_connect (window, "destroy", G_CALLBACK (destroy_cb), NULL);
    185 
    186     return window;
    187 }
    188 
    189 int
    190 main (int argc, char* argv[])
    191 {
    192     gtk_init (&argc, &argv);
    193     if (!g_thread_supported ())
    194         g_thread_init (NULL);
    195 
    196     GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
    197     gtk_box_pack_start (GTK_BOX (vbox), create_toolbar (), FALSE, FALSE, 0);
    198     gtk_box_pack_start (GTK_BOX (vbox), create_browser (), TRUE, TRUE, 0);
    199     gtk_box_pack_start (GTK_BOX (vbox), create_statusbar (), FALSE, FALSE, 0);
    200 
    201     main_window = create_window ();
    202     gtk_container_add (GTK_CONTAINER (main_window), vbox);
    203 
    204     gchar* uri = (gchar*) (argc > 1 ? argv[1] : "http://www.google.com/");
    205     webkit_web_view_load_uri (web_view, uri);
    206 
    207     gtk_widget_grab_focus (GTK_WIDGET (web_view));
    208     gtk_widget_show_all (main_window);
    209     gtk_main ();
    210 
    211     return 0;
    212 }
    213